US4133439A - Vehicle body loading and unloading mechanism - Google Patents

Vehicle body loading and unloading mechanism Download PDF

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Publication number
US4133439A
US4133439A US05/768,127 US76812777A US4133439A US 4133439 A US4133439 A US 4133439A US 76812777 A US76812777 A US 76812777A US 4133439 A US4133439 A US 4133439A
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US
United States
Prior art keywords
tilting frame
hydraulic cylinder
cylinder
cable
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/768,127
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English (en)
Inventor
Paul L. Goranson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toccoa Metal Technologies Inc
Original Assignee
Carrier Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Priority to US05/768,127 priority Critical patent/US4133439A/en
Priority to GB2560/78A priority patent/GB1594925A/en
Priority to CA296,348A priority patent/CA1076998A/en
Priority to JP1401578A priority patent/JPS53102526A/ja
Priority to AU33196/78A priority patent/AU511445B2/en
Application granted granted Critical
Publication of US4133439A publication Critical patent/US4133439A/en
Priority to JP1980156310U priority patent/JPS5676530U/ja
Assigned to DEMPSTER SYSTEMS, INC. reassignment DEMPSTER SYSTEMS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CARRIER CORPORATION
Assigned to SANWA BUSINESS CREDIT CORPORATION A DE CORPORATION reassignment SANWA BUSINESS CREDIT CORPORATION A DE CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEMPSTER, INC., A CORPORATION OF OH
Assigned to TOCCOA METAL TECHNOLOGIES, INC. reassignment TOCCOA METAL TECHNOLOGIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEMPSTER, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/64—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable
    • B60P1/6418—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable the load-transporting element being a container or similar
    • B60P1/6454—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable the load-transporting element being a container or similar the load transporting element being shifted by means of an inclined ramp connected to the vehicle

Definitions

  • This invention relates generally to improvements in vehicle body loading and unloading mechanisms for picking up large containers of the order of vehicle bodies and for loading and unloading such containers with respect to a transport vehicle, separable therefrom. More specifically this invention relates to a hydraulic mechanism mounted on a tilting frame of a vehicle body which is capable of extending and withdrawing a cable suitable for attachment to a large container for drawing the container onto the tilting frame and onto the vehicle body.
  • Such containers can be filled when sitting on the ground, floor or other surface after which they can be picked up or loaded by power, transported to a remote point, and then set down or unloaded. It is also possible to load the body separate and apart from the motor vehicle and then transport the loaded body to a remote point and disconnect it from the vehicle while still loaded.
  • Vehicles of the type used herein have conventionally used cables to draw the container up onto the vehicle body.
  • the cable is usually operated from a winch which is driven by a separate motor. By tipping the tilting frame of the vehicle body into an upward position, the container can be allowed to slide off the vehicle under the restraints of the cable and the winch.
  • the present invention relates to the use of a hydraulic cylinder to control the operation of the cable in drawing the container onto the vehicle or allowing it to slide off of the vehicle. Similar mechanisms of this type are disclosed in U.S. Pat. Nos. 3,049,378 and 3,964,626.
  • Hydraulic cable units are usually either the multi cylinder type as in U.S. Pat. No. 3,049,378 wherein the cable is passed over a series of sheaves to produce movement of the cable on the order of four times the movement of the hydraulic cylinder, or the single cylinder type as in U.S. Pat. No. 3,964,626 where large movement of the cylinder is necessary to produce the cable movement required. Construction and maintenance costs are higher in the type of construction which utilizes multiple sheaves whether one or two cylinders are used.
  • the cable passes around a sheave and is attached to a container, it produces a resultant force at the center of the sheave which has two vectors, one parallel to the hydraulic cylinder and one perpendicular to the hydraulic cylinder.
  • the perpendicular vector of the resultant force produces a bending movement in the hydraulic cylinder.
  • the sheave or pulley is mounted forward of the crosshead. The cable tends to rotate the pulley about the crosshead causing a sag or bending in the cylinder. The longer the cylinder, the greater the bending and the greater the stress and wear on the cylinder.
  • the telescopic hydraulic cylinder in its extended position is, in the prior art, not extremely resistant to vertical and horizontal vibrations caused by rough roads and general vibration during travel.
  • the pressure of the cylinder will hold the cylinder fully extended and square against the internal stop rings of the cylinder.
  • the cylinder may vibrate during travel which leads to a shorter cylinder life.
  • cylinder vibration is reduced by means of lugs attached to the cylinder and supports or stops attached to a crossplate extending widthwise across the tilting frame.
  • the bending on the cylinder is eliminated and the cylinder is readily removable from the frame of the vehicle. Removal of the cylinder for repair or overhaul purposes is usually a difficult time consuming task.
  • the present invention facilitates the removal of the cylinder by merely removing one pin connection and sliding the cylinder and crossheads out of the crosshead guides.
  • a hydraulic cylinder with attached lugs, mounted within the tilting frame of a container transport vehicle, by means of a removal pin at one end of said cylinder and a crosshead at the opposite end.
  • a crossplate with stops or supports for the hydraulic cylinder lugs is attached widthwise across the tilting frame.
  • the crosshead supports one end of the cylinder and rides in a pair of guide tracks in the tilting frame.
  • a sheave is concentrically mounted on the crosshead to guide a cable from a fixed position on the tilting frame around or over the sheave and then to the rear of the tilting frame for attachment to a container. Stops or supports are mounted on the crossplate in a position to support, or rest slightly below, the cylinder lugs when the cylinder is in an extended position.
  • FIG. 1 is a perspective view of a container transport vehicle embodying the present invention with a tilting frame in an elevated, loading or unloading position;
  • FIG. 2 is a plan view of the tilting frame shown in FIG. 1 with the hydraulic cylinder shown in the extended position in dotted lines:
  • FIG. 3 is a side sectional view of the tilting frame taken along lines 3--3 of FIG. 2, with the hydraulic cylinder shown in the extended position in dotted lines;
  • FIG. 4 is a perspective of a portion of the tilting frame and cylinder taken along lines 4--4 of FIG. 2.
  • FIG. 5 is a side view of a container and a transport vehicle in a position prior to loading the container of the vehicle body;
  • FIG. 6 is a side view of a container and a transport vehicle in a position with the container partially loaded on the vehicle body;
  • FIG. 7 is a side view of a container and a transport vehicle with the container loaded on the vehicle body;
  • FIG. 8 is a partial side sectional view of the tilting frame taken along lines 3--3 of FIG. 2 and showing the cylinder disconnected from the tilting frame and rotated 90°.
  • FIG. 9 is a partial side sectional view as in FIG. 8 with cylinder moved rearward in a position to be removed from the tilting frame.
  • FIG. 10 is a front sectional view of the tilting frame taken along line 10--10 of FIG. 2 with the hydraulic cylinder shown in an extended position and the cylinder lugs resting on the supports.
  • FIG. 11 is a perspective view of a portion of the tilting frame and cylinder taken along lines 10--10 of FIG. 2 with the hydraulic cylinder shown in an extended position and the cylinder lugs resting on the supports.
  • FIG. 1 there is seen a container transport vehicle 10 having a tilting frame generally designated 12 mounted on the rear body portion thereof.
  • the tilting frame is shown in an elevated position preparatory to loading or unloading a container onto or off of the tilting frame and the vehicle body.
  • the tilting frame 12 is elevated and held in an elevated position by means of a pair of hydraulic lift cylinders 14.
  • the frame pivots about a point 16 on the vehicle body 10 in such a manner that as the forward end of the tilting frame 12, that is the end of the tilting frame towards the forward portion of the vehicle, is elevated the rear portion of the tilting frame drops downward to ground level.
  • the tilting frame 12 consists of two parallel side frame members 18 which act as supports and guides for a container to be loaded on the vehicle.
  • the frame members 18 are structurally spaced by front cross member 20, a rear cross member 22 and two intermediate cross members 23.
  • a crossplate 25 is attached widthwise across the tilting frame and supports or stops 27 are mounted on the crossplate.
  • FIG. 1 shows the guide members to be U-shaped channels.
  • the guide members 24 are open at the rear end and secured, as by welding or other means, to the inside of the parallel side frame members 18.
  • the guide channels 24 extend from a point at or near the front of the tilting frame to a point short of the rear of the tilting frame.
  • On the inside of the rear cross member 22 there is mounted a hydraulic cylinder mounting member 26 comprising a yoke 28 secured to and extending outward from the cross member.
  • Each arm of the yoke has a hole therein, in alignment, to receive a pin 30.
  • the pin 30 is adapted to be inserted in the holes in the bracket to support a hydraulic cylinder or to be removed therefrom for disengagement of the hydraulic cylinder.
  • a telescopic hydraulic cylinder 32 is mounted between the frame members 18.
  • the rod end 34 of the cylinder is attached to the tilting frame 12 by pin 30 extending through the yoke 28 in the mounting member 26.
  • the forward or cylinder end of the hydraulic cylinder 32 is supported in the guide channels 24 by means of a crosshead or support member indicated generally as 36 and shown in detail in FIG. 4.
  • a pair of brackets 38 are rigidly secured to the forward end of the cylinder 32 and each have a bearing 40 adapted to support a shaft 42.
  • the shaft 42 extends through the bearings in the support members and terminate at each end in sliding members 44.
  • the sliding member consists of a pair of blocks 44.
  • the sliding blocks 44 are mounted in guide channels 24 so that the guide channels support the cylinder 32 and allow the cylinder to extend and retract as the blocks slide forwardly and rearwardly in the channels.
  • the blocks 44 are closely fitted to the guide channels to prevent upward movement without impairing movement along the channel.
  • a sheave 46 rotatably mounted on the shaft 42 between the brackets 38 serves as a guide for a cable 48.
  • a pair of U-shaped retaining members 50 extend over the sheave 46 to prevent the cable 48 from coming off the sheave.
  • One end of the cable 48 is secured to the tilting frame 12 at the rear cross member 22 beneath the cylinder 32 as seen in FIG. 3.
  • the cable 48 extends from the rear cross member 22 beneath the cylinder to the sheave 46, around the sheave then back to the rear of the tilting frame, terminating in a connector such as a hook or ring 52.
  • the length of the cable is sufficient to extend from the rear cross member to the forwardmost point of travel of the sheave as the cylinder is extended without the hook 52 interferring with the sheave.
  • FIGS. 5, 6 and 7. The loading and unloading of a container can be seen in FIGS. 5, 6 and 7.
  • a container 54 When a container 54 is on the ground, the vehicle is backed up to the container and the tilting frame 12 is elevated to the position shown in FIG. 5 by the hydraulic cylinders 14.
  • the ring 52 is placed on a hook, not shown, on the front lower portion of the container.
  • the hydraulic cylinder 32 is extended advancing the sliding blocks 44 in the guide channels 24 and moving the sheave 46 forward. Since one end of the cable 48 is restrained, the end of the cable 48 attached to the container advances at half the rate of movement of the sheave, drawing the container up onto the tilting frame 12 as seen in FIG. 6.
  • the tilting frame 12 is lowered by the cylinders 14 and the cylinder 32 continues to extend until the container reaches its forwardmost position on the vehicle as shown in FIG. 7.
  • each support or stop 27 is a flat rectangular surface set so that a cylinder lug 33 rests flat on one just above it.
  • the container can be removed from the vehicle by reversing the procedure. That is, the tilting frame 12 is elevated by the cylinders 14 and the container is allowed to slide rearwardly as the cylinder 32 is retracted. With the container on the ground, the cable 48 is disconnected from the container and the tilting frame is lowered to its original position on the vehicle. As seen in FIG. 5, the cable 48 is not parallel to the tilting frame 12 or the cylinder 32 as it draws the container upward. There is a component force normal to the cylinder which tends to bend the cylinder. Since this component force acts through the center of the sheave 46 and shaft 42, it is taken up by the sliding blocks 44 and the guide channels 24 thus preventing any bending of the cylinder 32.
  • the cylinder 32 can be removed for maintenance or replacement purposes merely by removing pin 30 from yoke 28. Removal of any additional parts of the tilting frame or vehicle is unnecessary.
  • the entire cylinder 32 is moved forward on the sliding blocks 44 in channels 24. The rear end of the cylinder is elevated to the position shown in FIG. 8. With the cylinder in a vertical position, the entire cylinder is moved, by sliding the blocks 44, rearwardly in the channels 24 until the blocks leave the channel as shown in FIG. 9. The cylinder may then be removed or lifted out off the tilting frame. Replacement of the cylinder is effected by reversing the procedure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
US05/768,127 1977-02-14 1977-02-14 Vehicle body loading and unloading mechanism Expired - Lifetime US4133439A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US05/768,127 US4133439A (en) 1977-02-14 1977-02-14 Vehicle body loading and unloading mechanism
GB2560/78A GB1594925A (en) 1977-02-14 1978-01-23 Vehicle body loading and unloading mechanism
CA296,348A CA1076998A (en) 1977-02-14 1978-02-06 Vehicle body loading and unloading mechanism
JP1401578A JPS53102526A (en) 1977-02-14 1978-02-09 Loading and unloading structure of frame body
AU33196/78A AU511445B2 (en) 1977-02-14 1978-02-10 Vehicle bosy loading and unloading mechanism
JP1980156310U JPS5676530U (enrdf_load_stackoverflow) 1977-02-14 1980-10-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/768,127 US4133439A (en) 1977-02-14 1977-02-14 Vehicle body loading and unloading mechanism

Publications (1)

Publication Number Publication Date
US4133439A true US4133439A (en) 1979-01-09

Family

ID=25081608

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/768,127 Expired - Lifetime US4133439A (en) 1977-02-14 1977-02-14 Vehicle body loading and unloading mechanism

Country Status (5)

Country Link
US (1) US4133439A (enrdf_load_stackoverflow)
JP (2) JPS53102526A (enrdf_load_stackoverflow)
AU (1) AU511445B2 (enrdf_load_stackoverflow)
CA (1) CA1076998A (enrdf_load_stackoverflow)
GB (1) GB1594925A (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455118A (en) * 1981-09-18 1984-06-19 Dempster Systems Inc. Opposed cylinder cable hoist mechanism
US4645405A (en) * 1985-05-01 1987-02-24 Cambiano Angelo M Roll-off container handling mechanism
US4674942A (en) * 1985-07-12 1987-06-23 Daniel Assh Load hauling tandem combination
US4704062A (en) * 1986-03-06 1987-11-03 Hale Isom H Self powered, roll-on and roll-off trailer
US4708569A (en) * 1985-11-07 1987-11-24 Hydro Mecanique Research S.A. Silo
US4934898A (en) * 1986-03-03 1990-06-19 Galbreath Incorporated Roll-off hoist for variable positioning of containers and method for use thereof
US4986719A (en) * 1986-03-03 1991-01-22 Galbreath Incorporated Roll-off hoist for variable positioning of containers
US5088875A (en) * 1986-03-03 1992-02-18 Galbreath Incorporated Roll-off hoist for variable positioning of containers
US5246330A (en) * 1992-05-01 1993-09-21 Automated Waste Equipment Co., Inc. Apparatus for loading and unloading of two separate containers upon a vehicular body
EP0811525A1 (en) * 1996-06-07 1997-12-10 RKP Svenksa AB Loading Device
US20060062660A1 (en) * 2004-09-23 2006-03-23 Lazar Marmur Apparatus for loading and unloading of a container upon a roll-off vehicle including a movable frame section
US20060062659A1 (en) * 2004-09-23 2006-03-23 Lazar Marmur Apparatus for dual stage loading of a container upon a roll-off vehicle
US7354236B1 (en) * 2004-09-09 2008-04-08 Springer Family Patents Limited Partnership Apparatus for the loading and unloading of motorcycles and other cargo into transporting vehicles
US20080219821A1 (en) * 2007-03-09 2008-09-11 Automated Waste Equipment Co., Inc. Cable hoisting apparatus
US20090148262A1 (en) * 2006-02-09 2009-06-11 Kosti Shirvanian Refuse collection vehicle and lifting apparatus therefor
US20090232629A1 (en) * 2004-01-28 2009-09-17 Collins Virgil L System and method for loading/unloading containers
US20100303594A1 (en) * 2009-06-02 2010-12-02 Duell Charles A Roll off hoist with hinged end portion
US20100303595A1 (en) * 2009-06-02 2010-12-02 Duell Charles A Roll off hoist with hinged tail and hydraulic reeving system
CN103547482A (zh) * 2011-03-23 2014-01-29 罗伯特.T.奥基夫 装载与卸载集装箱的系统和方法
US10322874B1 (en) 2016-04-13 2019-06-18 Mark D. Curley Dumpster handling device and method
US11117741B2 (en) 2016-04-13 2021-09-14 Mark D. Curley Object handling device and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129402B (en) * 1982-10-22 1986-06-18 Mackrill Engineering Limited D Vehicle loading system
JP2764402B2 (ja) * 1988-08-09 1998-06-11 三輪運輸工業株式会社 コンテナ脱着装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885399A (en) * 1931-07-06 1932-11-01 Vincent T Wren Freight loading and unloading device for vehicles
US1911485A (en) * 1932-06-14 1933-05-30 Jones Bros Asbestos Co Pipe support
US3049378A (en) * 1959-08-03 1962-08-14 Floyd E Nelson Self-loading and unloading vehicle
US3074574A (en) * 1961-03-06 1963-01-22 Prince Richard Truck frame and retractable truck bed
US3214046A (en) * 1962-08-31 1965-10-26 Dempster Brothers Inc Container handling mechanism
US3964626A (en) * 1972-01-08 1976-06-22 Asteko S/A Truck for handling containers
US3980262A (en) * 1972-03-09 1976-09-14 Rilco, Division Sadler Industrial Services, Inc. Pipe insulation load bearing support

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1152527A (en) * 1967-02-16 1969-05-21 Telehoist Ltd Improvements in or relating to load carrying vehicles.
JPS48104245A (enrdf_load_stackoverflow) * 1972-04-12 1973-12-27

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1885399A (en) * 1931-07-06 1932-11-01 Vincent T Wren Freight loading and unloading device for vehicles
US1911485A (en) * 1932-06-14 1933-05-30 Jones Bros Asbestos Co Pipe support
US3049378A (en) * 1959-08-03 1962-08-14 Floyd E Nelson Self-loading and unloading vehicle
US3074574A (en) * 1961-03-06 1963-01-22 Prince Richard Truck frame and retractable truck bed
US3214046A (en) * 1962-08-31 1965-10-26 Dempster Brothers Inc Container handling mechanism
US3964626A (en) * 1972-01-08 1976-06-22 Asteko S/A Truck for handling containers
US3980262A (en) * 1972-03-09 1976-09-14 Rilco, Division Sadler Industrial Services, Inc. Pipe insulation load bearing support

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4455118A (en) * 1981-09-18 1984-06-19 Dempster Systems Inc. Opposed cylinder cable hoist mechanism
US4645405A (en) * 1985-05-01 1987-02-24 Cambiano Angelo M Roll-off container handling mechanism
US4674942A (en) * 1985-07-12 1987-06-23 Daniel Assh Load hauling tandem combination
US4708569A (en) * 1985-11-07 1987-11-24 Hydro Mecanique Research S.A. Silo
US4934898A (en) * 1986-03-03 1990-06-19 Galbreath Incorporated Roll-off hoist for variable positioning of containers and method for use thereof
US4986719A (en) * 1986-03-03 1991-01-22 Galbreath Incorporated Roll-off hoist for variable positioning of containers
US5088875A (en) * 1986-03-03 1992-02-18 Galbreath Incorporated Roll-off hoist for variable positioning of containers
US4704062A (en) * 1986-03-06 1987-11-03 Hale Isom H Self powered, roll-on and roll-off trailer
US5246330A (en) * 1992-05-01 1993-09-21 Automated Waste Equipment Co., Inc. Apparatus for loading and unloading of two separate containers upon a vehicular body
EP0811525A1 (en) * 1996-06-07 1997-12-10 RKP Svenksa AB Loading Device
US8043043B2 (en) 2004-01-28 2011-10-25 The Heil Co., System and method for loading/unloading containers
US20090232629A1 (en) * 2004-01-28 2009-09-17 Collins Virgil L System and method for loading/unloading containers
US7354236B1 (en) * 2004-09-09 2008-04-08 Springer Family Patents Limited Partnership Apparatus for the loading and unloading of motorcycles and other cargo into transporting vehicles
US20060062660A1 (en) * 2004-09-23 2006-03-23 Lazar Marmur Apparatus for loading and unloading of a container upon a roll-off vehicle including a movable frame section
US7192239B2 (en) 2004-09-23 2007-03-20 Automated Waste Equipment Co., Inc. Apparatus for dual stage loading of a container upon a roll-off vehicle
US20060062659A1 (en) * 2004-09-23 2006-03-23 Lazar Marmur Apparatus for dual stage loading of a container upon a roll-off vehicle
US20090148262A1 (en) * 2006-02-09 2009-06-11 Kosti Shirvanian Refuse collection vehicle and lifting apparatus therefor
US7695237B2 (en) * 2006-02-09 2010-04-13 Kosti Shirvanian Refuse collection vehicle and lifting apparatus therefor
US8029228B2 (en) 2007-03-09 2011-10-04 Omaha Standard, Inc. Cable hoisting apparatus
US20080219821A1 (en) * 2007-03-09 2008-09-11 Automated Waste Equipment Co., Inc. Cable hoisting apparatus
US8444365B2 (en) 2009-06-02 2013-05-21 The Heil Co. Roll off hoist with hinged tail and hydraulic reeving system
US20100303595A1 (en) * 2009-06-02 2010-12-02 Duell Charles A Roll off hoist with hinged tail and hydraulic reeving system
US20100303594A1 (en) * 2009-06-02 2010-12-02 Duell Charles A Roll off hoist with hinged end portion
US8465246B2 (en) 2009-06-02 2013-06-18 The Heil Co. Roll off hoist with hinged end portion
US9446700B2 (en) 2009-06-02 2016-09-20 The Heil Co. Roll off hoist with hinged end portion
CN103547482A (zh) * 2011-03-23 2014-01-29 罗伯特.T.奥基夫 装载与卸载集装箱的系统和方法
CN103547482B (zh) * 2011-03-23 2016-01-27 罗伯特.T.奥基夫 装载与卸载集装箱的系统和方法
US9254772B2 (en) 2011-03-23 2016-02-09 Robert Trevor O'Keefe System and method of loading and unloading containers
US10322874B1 (en) 2016-04-13 2019-06-18 Mark D. Curley Dumpster handling device and method
US10850657B2 (en) 2016-04-13 2020-12-01 Mark D. Curley Dumpster handling device and method
US11117741B2 (en) 2016-04-13 2021-09-14 Mark D. Curley Object handling device and method

Also Published As

Publication number Publication date
GB1594925A (en) 1981-08-05
JPS5676530U (enrdf_load_stackoverflow) 1981-06-22
AU3319678A (en) 1979-08-16
AU511445B2 (en) 1980-08-21
CA1076998A (en) 1980-05-06
JPS53102526A (en) 1978-09-06

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AS Assignment

Owner name: SANWA BUSINESS CREDIT CORPORATION A DE CORPORATI

Free format text: SECURITY INTEREST;ASSIGNOR:DEMPSTER, INC., A CORPORATION OF OH;REEL/FRAME:005709/0052

Effective date: 19910304

AS Assignment

Owner name: TOCCOA METAL TECHNOLOGIES, INC., GEORGIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEMPSTER, INC.;REEL/FRAME:007749/0001

Effective date: 19950816